Company lists · Data refreshed September 2026

Top 25 Nonprofit IT consulting firms based in the Netherlands

RevenueBase identified 103 nonprofit IT consulting firms headquartered in the Netherlands as of September 2026 and tracks 610 professional contacts across them, including 246 with verified work emails. Amsterdam is the largest hub.

This list covers nonprofit IT consulting firms headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
103Companies
610Contacts tracked
246Verified emails
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The 25 largest nonprofit IT consulting firms based in the Netherlands

Ranked by team size
Top 25 of 103 nonprofit IT consulting firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit IT consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLeiden, NetherlandsHQ checked Sep 21, 202651-200195 contacts →

Indirect evidence

“De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceRosmalen, NetherlandsHQ checked Sep 21, 202651-20045 contacts →

Indirect evidence

“Ready to turn your organization into a frontrunner?”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceHattem, NetherlandsHQ checked Sep 21, 202611-5044 contacts →

Indirect evidence

“E&M Consultants is opgericht door Frank Engberts en Gert Meuleman.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceSliedrecht, NetherlandsHQ checked Sep 21, 202611-5029 contacts →

Indirect evidence

“WITh is een uniek accountantskantoor dat zich uitsluitend richt op de non-profitsector.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceUtrecht, NetherlandsHQ checked Sep 21, 202611-5018 contacts →

Indirect evidence

“We empower mission-driven organizations to leverage the world's #1 CRM platform, Salesforce.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceHaastrecht, NetherlandsHQ checked Sep 21, 202611-5017 contacts →

Indirect evidence

“We zijn een bijzonder adviesbureau en dat merk je.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-1014 contacts →

Indirect evidence

“AMS Consultancy exists to help purpose driven people do more.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceZwolle, NetherlandsHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

“Data Inside is ontstaan uit de behoefte om alle kennis die we vanuit onze afzonderlijke bedrijven Mailtraffic, Christal (Donateursbehouden) opdeden, samen te brengen.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceEmmen, NetherlandsHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“Orgon consults all kind of profit and non-profit companies in accounting, taxes, control, management structuring, internal and external auditting, human resource management…”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceZaandijk, NetherlandsHQ checked Sep 21, 202611-509 contacts →

Indirect evidence

“Wij zijn CISIS; marktleider in de Goede Doelen sector.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceVeldhoven, NetherlandsHQ checked Sep 21, 202611-509 contacts →

Partial evidence

“Novion is een jong en dynamisch IT advies- en implementatiebureau, gespecialiseerd in online IT oplossingen.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceGroningen, NetherlandsHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

“Bij Bruis geloven we dat technologie moet werken vóór mensen, niet andersom.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceHuizen, NetherlandsHQ checked Sep 21, 20261-107 contacts →

Indirect evidence

“Houweling & Partners is een NOAB kantoor in ‘t Gooi en werkzaam voor het MKB.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceGouda, NetherlandsHQ checked Sep 21, 20261-106 contacts →

Partial evidence

“Mitopics geeft onafhankelijk IT-advies vanuit de combinatie van technische, bedrijfskundige en juridische expertise.”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceBlaricum, NetherlandsHQ checked Sep 21, 20261-104 contacts →

Partial evidence

“Our passion lies in advising our clients about the possibilities of IT for their business.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-104 contacts →

Partial evidence

“The Sefa Social Consulting Group (SSCG) offers pro-bono, high-quality consulting services to small enterprises and non-profit organizations in the Netherlands.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceAlmere, NetherlandsHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

“Bij DBA werken we in een klein en enthousiast team.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceGroningen, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Management consulting firm specialised in helping management at both profit and non-profit companies to solve complex OD and HRM issues that affect their business.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceSchiphol-rijk, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Onze missie is om maatschappelijke organisaties en stichtingen in Nederland te voorzien van transparante en hoogwaardige IT diensten.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceRijswijk, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Indirect evidence

“Advisering en ondersteuning op het gebied van informatietechnologie”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Indirect evidence

“Hello.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceNijmegen, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Indirect evidence

“WoW Fundraising Consultancy was established by Wonu Owoade to raise awareness and encourage support for initiatives that wish to create positive and transformational social change…”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceThe Hague, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Strong evidence

IT business consulting, network/servermanagement, webdesign/development, trainings and more!”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“With impactful representation and a wealth of knowledge, experience and relationships, Xelerant Consulting is the personified extension of innovative tech companies seeking…”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceThe Hague, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“As a nonprofit Executive do you feel overwhelmed and confused about your systems and data management?”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 103 nonprofit IT consulting firms based in the Netherlands

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Nonprofit IT consulting firms based in the Netherlands at a glance

As of Sep 21, 2026
40.3%Verified-email coverage
5.9Average contacts per company
1-10Median size (employees)
11.7%Largest-city concentration · Amsterdam
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
87
11-50
13
51-200
3

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 103 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among nonprofit IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the Netherlands whose own description of what they do matches “nonprofit IT consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names nonprofit IT consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among nonprofit IT consulting firms, and records with no verified work email. Companies headquartered outside Netherlands are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 246 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names nonprofit IT consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many nonprofit IT consulting firms are there based in the Netherlands?

RevenueBase identified 103 nonprofit IT consulting firms headquartered in the Netherlands as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

DE Kleine Consultant, headquartered in Leiden, tops this list with the largest team on record.

Which city has the most nonprofit IT consulting firms?

Amsterdam leads with 12 headquartered companies, followed by Rotterdam (3) and The Hague (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 246 verified decision-maker contacts tracked across these 103 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.